Images: Tightrope walk across the Grand Canyon

In this photo provided by the Discovery Channel, aerialist Nik Wallenda walks a 2-inch-thick steel cable taking him a quarter mile over the Little Colorado River Gorge, Ariz. on Sunday, June 23, 2013. The daredevil successfully traversed the tightrope strung 1,500 feet above the chasm near the Grand Canyon in just more than 22 minutes, pausing and crouching twice as winds whipped around him and the cable swayed.Associated Press

Daredevil Nik Wallenda crosses a tightrope 1,500 feet above the Little Colorado River Gorge, Ariz., on Sunday, June 23, 2013, on the Navajo Nation outside the boundaries of Grand Canyon National Park. Wallenda completed the tightrope walk that took him a quarter mile over the gorge in just more than 22 minutes.Associated Press

Aerialist Nik Wallenda near the end of his quarter mile walk over the Little Colorado River Gorge in northeastern Arizona on Sunday, June 23, 2013. The daredevil successfully traversed the tightrope strung 1,500 feet above the chasm near the Grand Canyon in just more than 22 minutes, pausing and crouching twice as winds whipped around him and the cable swayed.Associated Press

Aerialist Nik Wallenda looks across the canyon before walking a 2-inch-thick steel cable that took him a quarter mile over the Little Colorado River Gorge in northeastern Arizona on Sunday, June 23, 2013. The daredevil successfully traversed the tightrope strung 1,500 feet above the chasm near the Grand Canyon in just more than 22 minutes, pausing and crouching twice as winds whipped around him and the cable swayed.Associated Press

Daredevil Nik Wallenda smiles during a news conference after crossing a tightrope 1,500 feet above the Little Colorado River Gorge Sunday, June 23, 2013, on the Navajo reservation outside the boundaries of Grand Canyon National Park. Wallenda completed the tightrope walk that took him a quarter mile across the gorge in just more than 22 minutes.Associated Press

Daredevil Nik Wallenda crosses a tightrope 1,500 feet above the Little Colorado River Gorge, Ariz., on Sunday, June 23, 2013, on the Navajo Nation outside the boundaries of Grand Canyon National Park. Wallenda completed the tightrope walk that took him a quarter mile across the gorge in just more than 22 minutes.Associated Press

Daredevil Nik Wallenda crosses a tightrope 1,500 feet above the Little Colorado River Gorge, Ariz., on Sunday, June 23, 2013, on the Navajo Nation outside the boundaries of Grand Canyon National Park. Wallenda completed the tightrope walk that took him a quarter mile over the gorge in just more than 22 minutes.Associated Press

Daredevil Nik Wallenda crosses a tightrope 1,500 feet above the Little Colorado River Gorge, Ariz., on Sunday, June 23, 2013, on the Navajo Nation outside the boundaries of Grand Canyon National Park. Wallenda completed the tightrope walk that took him a quarter mile across the gorge in just more than 22 minutes.Associated Press

Aerialist Nik Wallenda pauses during his quarter mile walk over the Little Colorado River Gorge in northeastern Arizona on Sunday, June 23, 2013. The daredevil successfully traversed a tightrope strung 1,500 feet above the chasm near the Grand Canyon in just more than 22 minutes, pausing and crouching twice as winds whipped around him and the cable swayed.Associated Press

Daredevil Nik Wallenda crosses a tightrope 1,500 feet above the Little Colorado River Gorge, Ariz., on Sunday, June 23, 2013, on the Navajo Nation outside the boundaries of Grand Canyon National Park. Wallenda completed the tightrope walk that took him a quarter mile across the gorge in just more than 22 minutes.Associated Press

Aerialist Nik Wallenda kisses the ground after walking a 2-inch-thick steel cable that took him a quarter mile over the Little Colorado River Gorge in northeastern Arizona on Sunday, June 23, 2013. The daredevil successfully traversed the tightrope strung 1,500 feet above the chasm near the Grand Canyon in just more than 22 minutes, pausing and crouching twice as winds whipped around him and the cable swayed.Associated Press

Daredevil Nik Wallenda runs as he finishes crossing a tightrope 1,500 feet above the Little Colorado River Gorge Sunday, June 23, 2013, on the Navajo reservation near outside the boundaries of Grand Canyon National Park. Wallenda completed the tightrope walk that took him a quarter mile across the gorge in just more than 22 minutes.Associated Press

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